Transcript for A Look Back on the Life of Comedian Sid Caesar, Who Died at 91

And we learned late today that one of come dim's original kings has died. Sid Caesar, from TV's first generation, his show of shows was appointment viewing. Groundbreaking and side-splitting. It paved the wail for spokes we love today and launched so many comic stars who kept us latching. ABC's David Wright looks back. Reporter: He was often called the king of comedy. Really, sid Caesar was the pioneer. Your show of shows created the live sketch comedy drama. He could be funny without even talking. In one sketch, he pan to mined an entire argument to beethoven's 5th. He could speak, too, in convincing gibberish in multiple languages. Put the bat down. Now, there's a lot of other sports that don't have any contact at all. Oh yeah, like what? Like track. Reporter: Younger viewers may remember him in "Grease" or know that his writers room on your show of shows inspired "The dick van dyke" show. The creator of that show got his start with sid Caesar. So did Mel brooks, Neil Simon, woody Allen and many others. One of sid Caesar's most famous characters, the professor, had a famous fan. Albert Einstein wrote him a fan letter. One genius to another. David Wright, ABC news, Hollywood. Love that note. And sid Caesar said he had a simple philosophy. Never take yourself too seriously.

This transcript has been automatically generated and may not be 100% accurate.

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